Not see if you will see this
id get blood tested
keep in mind the toxicity and deficiency symptoms kind of similar in terms of dryness

im 10 years post and dry skin eyes nose scalp
i doubt it's sjorgens
I believe accutane shrunk the glands perm
or caused some hormonal issue
try eating vitamin a and see
i wouldn't supplement for awhile

good luck hope u wel better and find an answer